Biyodeha

Biyodeha is a study app designed for high school biology and YKS (University Entrance Exam) preparation. It allows you to learn topics with flashcards, reinforce your understanding with tests, and track your mistakes to fill in any gaps in your knowledge. The entire TYT and AYT biology curriculum is included in the app, divided into topics and subtopics.

TOPIC FLASHCARDS

Each subtopic is explained in sequential flashcards. The cards include visuals and diagrams alongside the topic explanation; some cards also contain video explanations to reinforce the topic. You can mark the card you've read to track where you left off, add important cards to your favorites list for later review, and review them all in one place.

TESTS AND QUESTION SOLUTIONS

Following the topic explanation, there are tests you can solve: subtopic tests, topic tests, and theme tests. With questions embedded within the flashcards, you can immediately test the information you've read on that page. When the test is finished, your correct and incorrect answers are shown question by question; for each incorrect answer, you see the correct answer and your answer side-by-side.

MY MISTAKES

Every question you answer incorrectly is automatically added to your "My Mistakes" pool. You can open this pool and re-solve the questions whenever you want. When you answer a question correctly, it is removed from the pool; thus, the list always consists of questions where you are truly weak. This is the most efficient section for quick review before practice tests.

YOUR NOTES

You can take notes within the application about things that come to mind while studying. Notes are stored along with the card they were taken from; you can see, edit, or delete them all together from the Notes tab. It allows you to take notes without carrying a notebook and without losing connection to the subject.

SEE YOUR PROGRESS

On the main screen, you can continue from where you left off, track the days you studied, and your series. A separate progress record is kept for each section, meaning it remembers where you left off in both TYT and AYT when you switch between them. The weekly activity graph allows you to see your study routine.

REMINDERS

Reminder notifications are sent to help you remember to study. Notifications are completely scheduled on your device and you can turn them off whenever you want.

FREE CONTENT AND SUBSCRIPTIONS

You can download the app for free and start studying immediately with free topics and tests. If you want access to all content, section-based monthly subscriptions are offered: you only subscribe to the section you need and don't pay for content you don't use.

Subscriptions renew automatically. You can cancel your subscription at any time from your Google Play account; when you cancel, your access continues until the end of the paid period.

WHO IS IT FOR?

- 12th-grade students and graduates preparing for the YKS exam
- Those who want to review TYT and AYT biology topics from scratch
- High school students who want to combine topic review and question solving in one application
- Those who want to identify their weak areas and study in a focused way

WHY BIODEHA?

- Content organized by topic, aligned with the current curriculum
- Flashcard-based explanations: digestible passages instead of long texts
- Review system that automatically tracks mistakes
- Simple and non-distracting interface
- No ads
- Regularly updated and expanding content

For questions and comments: biyodeha@gmail.com